sloping lot

We have a sloping lot that slopes right to left. Although our house isn’t one of those sloping lot house plans, our lot does gradually slope, but just not enough to warrant a sloping home design. One thing we knew is that most likely to have landscaping that looks attractive and doesn’t wash away when it rains, we’re going to have to build a landscape bed, so our shrubs and flowers are contained within a walled area. Otherwise, our mulch will run off in heavier rainfalls.